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atchim
n00b
Joined: 24 Oct 2021
Posts: 9
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 Posted: Sat Dec 23, 2023 4:27 pm Post subject: GRUB 2.12 doesn't boot |
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Last night I updated several packages via @world update. Today I noticed that my kernel was also upgraded, so I did the usual process to properly install it. This process includes the generation of updated GRUB configuration file. When I rebooted my laptop, I got the boot menu instead of the default initialization. So I had to boot the Gentoo's minimal install media via pendrive, then I had to chroot to have access to my system. Checking the emerge log I found that one of the packages that was updated was GRUB. So I masked the version 2.12, then I did a downgrade for GRUB (now it's version 2.06-r9). I generated the configuration file via grub-mkconfig and, after rebooting, it worked.
Is GRUB 2.12 really broken or is there any detail that I didn't catch up? |
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eeckwrk99
Apprentice
Joined: 14 Mar 2021
Posts: 225
Location: Gentoo forums
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| Posted: Sat Dec 23, 2023 4:46 pm Post subject: Re: GRUB 2.12 doesn't boot |
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| atchim wrote: | | Is GRUB 2.12 really broken |
sys-boot/grub-2.12 is testing, so yes, bugs are expected.
| atchim wrote: | | When I rebooted my laptop, I got the boot menu instead of the default initialization. |
With 2.12, have you tried re-installing GRUB then regenerating config before rebooting? |
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sam_
Developer
Joined: 14 Aug 2020
Posts: 1942
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| Posted: Sat Dec 23, 2023 6:01 pm Post subject: |
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| To be specific, make sure you run grub-install as well as grub-mkconfig. |
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darkphader
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Joined: 09 May 2002
Posts: 1222
Location: Motown
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| Posted: Sat Dec 23, 2023 6:12 pm Post subject: |
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After install and config update system no longer boots:
| Code: | | error: 'symbol grub_is_shim_lock_enabled' not found |
Yes, I ran the install (no erros) and the config update.
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eeckwrk99
Apprentice
Joined: 14 Mar 2021
Posts: 225
Location: Gentoo forums
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| Posted: Sat Dec 23, 2023 7:38 pm Post subject: |
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| darkphader wrote: | After install and config update system no longer boots:
| Code: | | error: 'symbol grub_is_shim_lock_enabled' not found |
Yes, I ran the install (no erros) and the config update. |
Related bug report: bug #64406: error: symbol `grub_is_shim_lock_enabled` not found when trying to boot image
Possible solution: UEFI secure boot and shim support
Basically: | Code: | | # grub-install --disable-shim-lock |
Some users on EndeavourOS forums reported that it fixed the issue on their end, despite not having secure boot enabled.
Not sure what are the implications of using this option. I would wait for more experimented users to give their opinion before using it.
Last edited by eeckwrk99 on Sat Dec 23, 2023 7:47 pm; edited 1 time in total |
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Goverp
Advocate
Joined: 07 Mar 2007
Posts: 2167
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| Posted: Sat Dec 23, 2023 7:45 pm Post subject: |
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Interesting, I had a problem with the most recent update to GRUB-2.06 that I cured by installing 2.12 - no mention of shim locks!
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darkphader
Veteran
Joined: 09 May 2002
Posts: 1222
Location: Motown
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| Posted: Sat Dec 23, 2023 9:26 pm Post subject: |
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Some weirdness. Booted from a sysrescuecd and found this:
| Code: | /boot/EFI/gentoo/grubx64.efi
and
/boot/EFI/EFI/gentoo/grubx64.efi |
The file in the EFI/EFI path was time stamped per the last install. The other file in the single EFI path was older.
I copied the current file in the EFI/EFI path replacing the older one in the single EFI path and system is now up and running.
No clue why I have an extra EFI directory, however there seems to be some issues when running grub-install.
Per the wiki @ https://wiki.gentoo.org/wiki/GRUB
| Code: | # grub-install
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory. |
or | Code: | # grub-install --efi-directory=/efi
Installing for x86_64-efi platform.
grub-install: error: /efi doesn't look like an EFI partition. |
Per the Handbook @ https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Bootloader
| Code: | grub-install --target=x86_64-efi --efi-directory=/efi
Installing for x86_64-efi platform.
grub-install: error: /efi doesn't look like an EFI partition. |
If I edit the install | Code: | # grub-install --efi-directory=/boot/EFI
Installing for x86_64-efi platform.
Installation finished. No error reported. |
The install appears correct but this puts grubx64.efi in the EFI/EFI path which doesn't work.
I need to edit the install as:
| Code: | # grub-install --efi-directory=/boot
Installing for x86_64-efi platform.
Installation finished. No error reported. |
Which puts the file in the apparent place it's needed - at /boot/EFI/gentoo/grubx64.efi
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darkphader
Veteran
Joined: 09 May 2002
Posts: 1222
Location: Motown
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| Posted: Sun Dec 24, 2023 4:11 am Post subject: |
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I do get this QA notice when emerging grub: | Code: | QA: other
Problems with installed bash completions were found:
grub: 'have' command is deprecated and must not be used.
grub: incorrect name, no completions for 'grub' command defined.
grub-set-default: missing alias (symlink) for completed command.
grub-mkrescue: missing alias (symlink) for completed command.
grub-mkconfig: missing alias (symlink) for completed command.
grub-reboot: missing alias (symlink) for completed command.
grub-install: missing alias (symlink) for completed command.
grub-probe: missing alias (symlink) for completed command.
grub-sparc64-setup: missing alias (symlink) for completed command.
grub-mkimage: missing alias (symlink) for completed command.
grub-bios-setup: missing alias (symlink) for completed command.
grub-script-check: missing alias (symlink) for completed command.
grub-mkfont: missing alias (symlink) for completed command.
grub-editenv: missing alias (symlink) for completed command.
grub-mkpasswd-pbkdf2: missing alias (symlink) for completed command.
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| Code: | | eselect bashcomp list |
shows grub completions enabled
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sMueggli
Guru
Joined: 03 Sep 2022
Posts: 484
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| Posted: Sun Dec 24, 2023 9:11 am Post subject: |
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| @darkphader why do you hijack this thread? Your problems are very likely caused by a wrong setup. |
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Schrekkorr
n00b
Joined: 27 Dec 2023
Posts: 1
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| Posted: Wed Dec 27, 2023 10:34 am Post subject: |
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| darkphader wrote: | Some weirdness. Booted from a sysrescuecd and found this:
| Code: | /boot/EFI/gentoo/grubx64.efi
and
/boot/EFI/EFI/gentoo/grubx64.efi |
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I had the same issue. This post helped. Thanks.  |
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B2382F29
n00b
Joined: 08 Sep 2004
Posts: 12
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| Posted: Thu Dec 28, 2023 9:30 am Post subject: |
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Same issue here.
It seems by specifying /boot/EFI as the path in grub-install it puts the files into the wrong /boot/EFI/EFI directory.
I manually copied them up to the /boot/EFI directory and now it is working.
Thanks @darkphader |
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sMueggli
Guru
Joined: 03 Sep 2022
Posts: 484
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| Posted: Thu Dec 28, 2023 5:33 pm Post subject: |
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| B2382F29 wrote: | | It seems by specifying /boot/EFI as the path in grub-install it puts the files into the wrong /boot/EFI/EFI directory. |
Why do you think /boot/EFI is the correct path for the ESP? Did you mount the ESP to /boot/EFI so that your bootloader is located under /boot/EFI/EFI/gentoo/grubx64.efi?
If you mount your ESP to /boot, then "grub-install --efi-directory=/boot" is pointing to the root of the ESP.
The traditional mount point for the ESP in Grub is /boot/efi and the bootloader is located under /boot/efi/EFI/gentoo/grubx64.efi. |
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CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3830
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| Posted: Sat Dec 30, 2023 6:44 pm Post subject: |
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@sMueggli
+1
Oh boy! I've been doing it badly as I disgarded to reinstall after generating new /boot/efi/EFI/gentoo/grub/grub.cfg, hoping it would be baclwards compatible...
Dang! I was so wrong.  
Thks 4 ur attention, interest & support.
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Massimo B.
Veteran
Joined: 09 Feb 2005
Posts: 1810
Location: PB, Germany
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| Posted: Tue Apr 16, 2024 7:14 am Post subject: |
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| darkphader wrote: | | Code: | | error: 'symbol grub_is_shim_lock_enabled' not found |
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I had this on a Gentoo that can boot natively but also from Windows as Virtual Machine with physical harddrive access. Native boot still worked while the VM boot did show this error.
I tried different grub-instal, with --removable and without, also trying --disable-shim-lock. Didn't help.
Only a new grub-mkconfig did fix it, why?
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